Home / 5,122.08-7,068.38-2,883.96

Finding the Fourth Proportional to 5,122.08, 7,068.38 and 2,883.96

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Solution

The fourth proportional to 5,122.08, 7,068.38 and 2,883.96 is: 3,979.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,122.08 : 7,068.38 = 2,883.96 : x
  2. Step 2: Convert to fraction form
    5,122.08/7,068.38 = 2,883.96/x
  3. Step 3: Cross multiply
    5,122.08x = 7,068.38 × 2,883.96
  4. Step 4: Simplify right side
    5,122.08x = 20,384,925.18
  5. Step 5: Solve for x
    x = 20,384,925.18/5,122.08
  6. Step 6: Final answer
    x = 3,979.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.